Name/Scientific notes:--------------------------------The name lavender comes from the Latin root lavare, which means "to wash." Lavender may have earned this name because it was frequently used in baths to help purify the body and spirit. However, this herb has also been used as a remedy for a range of ailments from insomnia and anxiety to depression and fatigue. Research has confirmed that lavender produces slight calming, soothing, and sedative effects when its scent is inhaled.